نتایج جستجو برای: streptomyces

تعداد نتایج: 13451  

2014
Jose C. Huguet-Tapia Dawn R. D. Bignell Rosemary Loria

PAISt is a large genomic island located in the chromosome of the plant pathogen Streptomyces turgidiscabies Car8. The island carries clustered virulence genes, transfers to other Streptomyces species, and integrates by site-specific recombination at the 8 bp palindrome TTCATGAA. The palindrome is located at the 3' end of the bacitracin resistance gene (bacA). We demonstrate that PAISt is able t...

2011
A. Manteca J. Sanchez

Streptomyces is an extremely important bacterium for industry, since approximately two thirds of all antibiotics are synthesized by members of this genus. Furthermore, Streptomycetes produce large numbers of eukaryotic cell differentiation and apoptosis inducers. Streptomyces is a mycelial soil bacterium characterized by a complex developmental cycle that includes programmed cell death (PCD) ph...

Journal: :Journal of bacteriology 1958
A SANCHEZ-MARROQUIN

With the growing economic significance of some Streptomyces species, the necessity of establishing their precise characteristies in well-defined specific terms becomes of great theoretical and practical importance (Waksman, 1957). The purpose of this paper is to present a comparative study of the main morphological, physiological, and biochemical characteristics of cultures belonging to the Str...

2013
Subramaniam Gopalakrishnan Vadlamudi Srinivas Meesala Sree Vidya Abhishek Rathore

Five strains of Streptomyces (CAI-24, CAI-121, CAI-127, KAI-32 and KAI-90) were earlier reported by us as biological control agents against Fusarium wilt of chickpea caused by Fusarium oxysporum f. sp. ciceri (FOC). In the present study, the Streptomyces were characterized for enzymatic activities, physiological traits and further evaluated in greenhouse and field for their plant growth promoti...

Journal: :International journal of systematic and evolutionary microbiology 2005
Liang He Wei Li Ying Huang Liming Wang Zhiheng Liu Benjamin Lanoot Marc Vancanneyt Jean Swings

An actinomycete, strain FXJ46(T), was isolated from cypress forest soil in northern China and shown to have chemotaxonomic and morphological properties consistent with streptomycetes. It developed greyish aerial mycelium and pinkish-brown substrate mycelium on oatmeal agar. Phylogenetic analyses based on an almost complete 16S rRNA gene sequence of the strain and on the 120 nucleotide variable ...

Journal: :jundishapur journal of microbiology 0
samia siddique department of chemistry, government college university, lahore, pakistan; department of chemistry, government college university lahore, pakistan. tel/ fax: +92-3334101261 quratulain syed food and biotechnology research center, pakistan council of scientific and industrial research laboratories complex ferozepur, lahore, pakistan ahmad adnan department of chemistry, government college university, lahore, pakistan fahim ashraf qureshi office of research, innovation and commercialization, comsats institute of information and technology, islamabad, pakistan

conclusions from the results, it was concluded that agricultural lands around pakistan council of scientific and industrial research (pcsir) campus lahore were rich sources of industrially important streptomyces, especially s. avermitilis. results the 10 selected isolates were identified as the avermectin-producing strain by fermentation and characterized on isp2 medium for aerial and reverse s...

ژورنال: :دوفصلنامه فن آوری زیستی در کشاورزی(علمی-پژوهشی) 2012
اعظم بهارلوئی غلام¬رضا شریفی سیرچی غلام¬حسین شهیدی بنجار

قارچ  fusarium solani f. sp. melongenae یکی از مهم­ترین عوامل بیماری­زای خاک­زی است که دارای دامنه میزبانی بسیار وسیعی بوده و با ایجاد بیماری پژمردگی آوندی روی گیاه بادمجان (solanum melongena) موجب کاهش معنی داری در عملکرد این محصول می­شود. در جستجوی یک آنتاگونیست موثر علیه قارچ مذکور از خاک­های زراعی چند منطقه در استان کرمان، تعداد 110 استرین اکتینومیست خاک­زی به دست آمد که از بین آن­ها تعداد ...

Journal: :nanomedicine journal 0
meysam soltani nejad department of plant pathology, college of agriculture, shahid bahonar university of kerman, iranسازمان اصلی تایید شده: دانشگاه شهید باهنر (shahid bahonar university) mehrdad khatami department of biotechnology, college of agriculture, shahid bahonar university of kerman, iranسازمان اصلی تایید شده: دانشگاه شهید باهنر (shahid bahonar university) gholam hosein shahidi bonjar department of plant pathology, college of agriculture, shahid bahonar university of kerman, iranسازمان اصلی تایید شده: دانشگاه شهید باهنر (shahid bahonar university)

objective(s): the development of reliable and ecofriendly process for the synthesis of nano-metals is an important aspect in the field of nanotechnology. nano-metals are a special group of materials with broad area of applications. materials and methods: in this study, extracellular synthesis of silver nanoparticles (snps) performed by use of the gram positive soil streptomycetes. streptomycete...

Journal: :iranian journal of microbiology 0
seyedvesal hosseini chemical engineering department, islamic azad university, shah rood branch, shah rood, iran. zahra saffari pilot nanobiotechnology department, pasteur institute of iran, tehran 13164, iran. ali farhanghi pilot nanobiotechnology department, pasteur institute of iran, tehran 13164, iran. seyedmohammad atyabi pilot nanobiotechnology department, pasteur institute of iran, tehran 13164, iran. dariush norouzian pilot nanobiotechnology department, pasteur institute of iran, tehran 13164, iran.

background and objectives: proteases are a group of enzymes that catalyze the degradation of proteins resulting in the pro- duction of their amino acid constituents. they are the most important group of industrial enzymes which account for about 60% of total enzymes in the market and produced mainly by microorganisms. the attempts were made to study the kinetic parameters of protease produced b...

Journal: :iranian journal of biotechnology 2009
jayapradha ramakrishnan murugesh shunmugasundaram mahesh narayanan

the streptomycetes sp. scbt strain gen bank accession number eu143270 isolated from the rhizosphere soil of medicinal plants was collected from the kolli hills of tamil nadu, india. the strain streptomyces is designated as school of chemical and biotechnology (scbt), capable of inhibiting the growth of a wide range of gram-negative and gram-positive bacteria. an almost complete 16s rrna gene se...

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